Wow, it's explained the reason of your electricity bill
Your A/C is power hungry, 2600w
But I think you can share more info and we can help you in a better way to reduce your electricity consume
Is it necessary to turn on the A/C?
Most cases you can solve the problem with fans, good airflow and undervolt.
as replied above,
i just wanna find a way to exhaust some of the hot air out of the apartment, simply opening windows doesnt help much !...